ALWEST BESS (ERCOT-22INR0541) — Project Summary

Queue ID
ERCOT-22INR0541
Capacity
208.63 MW
Technology
Battery
Status
active
Location
Anderson, TX
Region
ERCOT
Developer
Castleman Power
IA Status
Facility Study

ALWEST BESS

ERCOT-22INR0541BetaActiveBatteryERCOTLBNL + Live

208.63 MW storage in Anderson, TX · In queue since August 2021 · Proposed COD April 2028

BA: ERCOISO/RTO: ERCOTNERC: TRERC: ERCOT

208.63 MW

Capacity

1

Components

Battery

4y 11m

In Queue

Facility Study

IA Phase

COD target: 2028

Interconnection

Total Duration

6y 8m

Facilities Study50%
Queue EntryAug 24, 2021

Interconnection request submitted to ISO/RTO

Interconnection StudyCurrent

ERCOT uses a serial "connect and manage" approach — fastest among major ISOs.

Typical: 18–30 months (fastest major ISO)

Interconnection Agreement

Interconnection agreement not yet executed

Typical: 30–60 days (negotiation)

Commercial Operation

Proposed COD: 2028-04-19

Cross-source intelligence
Beta
Low confidence·3 sources·as of 2026-06-01
Expected COD
2028-04-19
From queue filing
Developer
Castleman Power
From queue filing
Status
Active
Active — Facility Study stage, 5% build probability per ERCOT queue tracker
Financing
Unannounced
Key milestones
COD targetMay 3, 2026

Original proposed COD before being pushed to April 2028

source
COD targetApr 18, 2028Most recent

Revised proposed COD per May 2025 queue update

source
About

The ALWEST BESS project is a proposed 208.63 MW battery storage project located in Anderson County, Texas. It is being developed by Castleman Power and consists entirely of battery storage. The project is currently active in the ERCOT interconnection queue as entry ERCOT-22INR0541, with a queue entry date of August 24, 2021.

The proposed commercial operation date for ALWEST BESS is April 19, 2028. Its interconnection status is currently in the Facility Study phase, and the point of interconnection is the 3114 Paltalco 138kV substation. The project has appeared in recent news coverage.

Generated from interconnection queue and public data sources

ERCOT Queue
Development Risk

Realization risk before commercial operation — cluster-study clearance, IA timing, counterparty mix, and withdrawal probability vs cohort. The diligence view that determines whether this project is worth pursuing. Powered by InfraSure's development-stage modeling stack.

Available on the InfraSure platform

See the full development-risk decomposition for this project.

P(COD by stated date)
Withdrawal probability vs cohort
IA cluster risk
Project Details

State

TX

County

Anderson

Grid Region

ERCOT (Texas)

Market

ISO/RTO Member

Developer

Castleman Power

Utility

—

Entity

ERCOT

Service Type

—

Point of Interconnection

3114 Paltalco 138kV

Data Source

LBNL + Live

Risk Analytics

Composite operating-phase risk view — what this asset's risk profile would look like once it reaches commercial operation. Climate hazards across its operating life, expected generation variability, and offtake counterparty exposure, decomposed into a single decision-grade score. Powered by InfraRisk.

Available on the InfraSure platform

See the full risk decomposition + scenarios for this project.

Climate hazards (8+)
Generation variability (P10/P50/P90)
Offtake + transmission counterparty
Generation Forecast

Forward generation outlook — what this project would produce assuming it reaches commercial operation. Probabilistic ranges (P10/P50/P90) across weather, demand, and policy scenarios, conditioned on the proposed COD. Powered by InfraSure's generation modeling stack.

Available on the InfraSure platform

See the full forecast + scenario decomposition for this project.

P50 conditioned on COD
Capacity factor vs cohort
Weather + policy scenarios
Financial Forecast

Forward revenue, DSCR projection, and financing-close risk — conditioned on commercial operation. The bankability view that determines whether the deal clears its covenants once online. Powered by InfraSure's asset cashflow stack.

Available on the InfraSure platform

See the full revenue + DSCR projection for this project.

Revenue conditioned on COD
Financing close risk
Cohort DSCR comparison
Market Context
Approximate
ISO / RTO
ERCOT
Trading Hub
HB_NORTH
Hub Confidence
LOW

This project's market context is estimated from its Point of Interconnection. Hub and node assignments are approximate and based on geographic inference from the POI substation name.

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InfraSure platform

Forward forecasts, scenario decomposition, and risk-decision tooling for this queue project.